About the security content of iOS 8.4.1

This document describes the security content of iOS 8.4.1.

For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and any necessary patches or releases are available. To learn more about Apple Product Security, see the Apple Product Security website.

iOS 8.4.1

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A maliciously crafted afc command may allow access to protected parts of the filesystem

Description: An issue existed in the symbolic linking mechanism of afc. This issue was addressed by adding additional path checks.

CVE-ID

CVE-2015-5746 : evad3rs, TaiG Jailbreak Team

Air Traffic

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: AirTraffic may have allowed access to protected parts of the filesystem

Description: A path traversal issue existed in asset handling. This was addressed with improved validation.

CVE-ID

CVE-2015-5766 : TaiG Jailbreak Team

Backup

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to create symlinks to protected regions of the disk

Description: An issue existed within the path validation logic for symlinks. This issue was addressed through improved path sanitization.

CVE-ID

CVE-2015-5752 : TaiG Jailbreak Team

bootp

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: An attacker may be able to determine Wi-Fi networks a device has previously accessed

Description: Upon connecting to a Wi-Fi network, MAC addresses of previously accessed networks may have been broadcast. This issue was addressed by broadcasting only MAC addresses associated with the current SSID.

CVE-ID

CVE-2015-3778 : Piers O'Hanlon of Oxford Internet Institute, University of Oxford (on the EPSRC Being There project)

Certificate UI

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: An attacker with a privileged network position may be able to accept untrusted certificates from the lock screen

Description: Under certain circumstances, the device may have presented a certificate trust dialog while in a locked state. This issue was addressed through improved state management.

CVE-ID

CVE-2015-3756 : Andy Grant of NCC Group

CloudKit

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to access the iCloud user record of a previously signed in user

Description: A state inconsistency existed in CloudKit when signing out users. This issue was addressed through improved state handling.

CVE-ID

CVE-2015-3782 : Deepkanwal Plaha of University of Toronto

CFPreferences

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious app may be able to read other apps' managed preferences

Description: An issue existed in the third-party app sandbox. This issue was addressed by improving the third-party sandbox profile.

CVE-ID

CVE-2015-3793 : Andreas Weinlein of the Appthority Mobility Threat Team

Code Signing

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to execute unsigned code

Description: An issue existed that allowed unsigned code to be appended to signed code in a specially crafted executable file. This issue was addressed through improved code signature validation.

CVE-ID

CVE-2015-3806 : TaiG Jailbreak Team

Code Signing

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Description: An issue existed in the way multi-architecture executable files were evaluated that could have allowed unsigned code to be executed. This issue was addressed through improved validation of executable files.

CVE-ID

CVE-2015-3803 : TaiG Jailbreak Team

Code Signing

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A local user may be able to execute unsigned code

Description: A validation issue existed in the handling of Mach-O files. This was addressed by adding additional checks.

CVE-ID

CVE-2015-3802 : TaiG Jailbreak Team

CVE-2015-3805 : TaiG Jailbreak Team

CoreMedia Playback

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Viewing a maliciously crafted movie file may lead to an unexpected application termination or arbitrary code execution

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Processing a maliciously crafted font file may lead to an unexpected application termination or arbitrary code execution

Description: A memory corruption issue existed in the processing of font files. This issue was addressed through improved input validation.

CVE-ID

CVE-2015-5755 : John Villamil (@day6reak), Yahoo Pentest Team

CVE-2015-5761 : John Villamil (@day6reak), Yahoo Pentest Team

DiskImages

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Processing a maliciously crafted DMG file may lead to an unexpected application termination or arbitrary code execution with system privileges

Description: A memory corruption issue existed in parsing of malformed DMG images. This issue was addressed through improved memory handling.

CVE-ID

CVE-2015-3800 : Frank Graziano of the Yahoo Pentest Team

FontParser

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Processing a maliciously crafted font file may lead to an unexpected application termination or arbitrary code execution

Description: A memory corruption issue existed in the processing of font files. This issue was addressed through improved input validation.

CVE-ID

CVE-2015-3804 : Apple

CVE-2015-5756 : John Villamil (@day6reak), Yahoo Pentest Team

CVE-2015-5775 : Apple

ImageIO

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Processing a maliciously crafted .tiff file may lead to an unexpected application termination or arbitrary code execution

Description: A memory corruption issue existed in the processing of .tiff files. This issue was addressed through improved bounds checking.

CVE-ID

CVE-2015-5758 : Apple

ImageIO

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Visiting a maliciously crafted website may result in the disclosure of process memory

Description: An uninitialized memory access issue existed in ImageIO's handling of PNG images. Visiting a malicious website may result in sending data from process memory to the website. This issue was addressed through improved memory initialization and additional validation of PNG images.

CVE-ID

CVE-2015-5781 : Michal Zalewski

ImageIO

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Visiting a maliciously crafted website may result in the disclosure of process memory

Description: An uninitialized memory access issue existed in ImageIO's handling of TIFF images. Visiting a malicious website may result in sending data from process memory to the website. This issue is addressed through improved memory initialization and additional validation of TIFF images.

CVE-ID

CVE-2015-5782 : Michal Zalewski

IOKit

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Parsing a maliciously crafted plist may lead to an unexpected application termination or arbitrary code execution with system privileges

Description: A memory corruption existed in processing of malformed plists. This issue was addressed through improved memory handling.

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious enterprise application may be able to replace extensions for other apps

Description: An issue existed in the install logic for universal provisioning profile apps, which allowed a collision to occur with existing bundle IDs. This issue was addressed through improved bundle ID validation.

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Parsing a maliciously crafted office document may lead to an unexpected application termination or arbitrary code execution

Description: A memory corruption issue existed in parsing of office documents. This issue was addressed through improved memory handling.

CVE-ID

CVE-2015-5773 : Apple

Safari

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Visiting a malicious website may lead to user interface spoofing

Description: A malicious website could open another site and prompt for user input without a way for the user to tell where the prompt originated. The issue was addressed by displaying the prompt's origin to the user.

CVE-ID

CVE-2015-3729 : Code Audit Labs of VulnHunt.com

Safari

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious website may trigger an infinite number of alert messages

Description: An issue existed where a malicious or hacked website could show infinite alert messages and make users believe their browser was locked. The issue was addressed through throttling of JavaScript alerts.

CVE-ID

CVE-2015-3763

Sandbox_profiles

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: An malicious app may be able to read other apps' managed preferences

Description: An issue existed in the third-party app sandbox. This issue was addressed by improving the third-party sandbox profile.

CVE-ID

CVE-2015-5749 : Andreas Weinlein of the Appthority Mobility Threat Team

UIKit WebView

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious application may be able to initiate FaceTime calls without user authorization

Description: An issue existed in the parsing of FaceTime URLs within WebViews. This issue was addressed through improved URL validation.

CVE-ID

CVE-2015-3758 : Brian Simmons of Salesforce, Guillaume Ross

WebKit

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: A malicious website can make a tap event produce a synthetic click on another page

Description: An issue existed in how synthetic clicks are generated from tap events that could cause clicks to target other pages. The issue was addressed through restricted click propagation.

CVE-ID

CVE-2015-5759 : Phillip Moon and Matt Weston of Sandfield

WebKit

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Impact: Content Security Policy report requests may leak cookies

Description: Two issues existed in how cookies were added to Content Security Policy report requests. Cookies were sent in cross-origin report requests in violation of the standard. Cookies set during regular browsing were sent in private browsing. These issues were addressed through improved cookie handling.

CVE-ID

CVE-2015-3752 : Muneaki Nishimura (nishimunea)

WebKit

Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

Description: An issue existed where websites with video controls would load images nested in object elements in violation of the website's Content Security Policy directive. This issue was addressed through improved Content Security Policy enforcement.

CVE-ID

CVE-2015-3751 : Muneaki Nishimura (nishimunea)

FaceTime is not available in all countries or regions.

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